Poland - First Planned Flight of a Stratosphere Balloon issue (#141153)

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First Planned Flight of a Stratosphere Balloon issue of Poland

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Short desc: First Planned Flight of a Stratosphere Balloon

Issuer: Poland
Date: 1938
Occasion: unset

Consists of 1 stamp: (See stamps as list)

75g+60g vio

All are semipostal

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